Cleaning brush device for re-threshing roller

Abstract

The invention discloses a re-threshing roller cleaning brush device, and relates to the field of re-threshing roller cleaning, the re-threshing roller cleaning brush device comprises a roller shell and a wheat conveying plate for conveying wheat, the inner side of the roller shell is rotatably provided with a wheat threshing roller through a rotating shaft, and the outer side of the wheat threshing roller is fixedly provided with a plurality of deflector rods; the lower end of the wheat feeding plate is provided with a plurality of main cleaning groups used for cleaning the deflector rods, each main cleaning group comprises two main cleaning rods, the two main cleaning rods are located on the two sides of the corresponding deflector rods, and the lower end of the wheat feeding plate is fixedly provided with two connecting plates. When the wheat threshing roller rotates to separate wheat and wheat straw, the wheat straw wound on the shifting rod can be synchronously cleaned, and through the arrangement of the main cleaning rod, after the wheat straw is cleaned, the cleaned wheat straw can be discharged along with other normally discharged wheat straw, and the wheat threshing device is suitable for actual use.

Description

Technical Field

[0001] This invention relates to the field of re-extraction drum cleaning, and particularly to a re-extraction drum cleaning brush device. Background Technology

[0002] The hulling drum is generally the main component of a wheat harvester used to separate wheat from straw. Its main body consists of a hulling drum, a drum, and a screen. The hulling drum is usually located at the straw outlet of the harvester and has an opening to the outside. A lever is installed on the outside of the drum, which is mainly used to pull out the straw. The main shaft is connected to the drive shaft of the lever through a belt drive mechanism. The bottom of the drum is a sieve, i.e., a screen.

[0003] When a combine harvester is working, wheat straw, being a soft material, can become entangled in the lever after prolonged use. This affects the conveying of the straw and the separation of wheat from the straw, resulting in the discharged straw still carrying a significant amount of wheat, which is wasteful.

[0004] Therefore, it is necessary to propose a re-extraction roller cleaning brush device to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a re-threshing drum cleaning brush device to solve the problem of wheat straw getting tangled in the pull rod and affecting wheat separation during long-term operation of the harvester.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a threshing drum cleaning brush device, comprising a drum shell and a wheat feeding plate for conveying wheat, wherein a threshing drum is rotatably provided on the inner side of the drum shell via a rotating shaft, and a plurality of levers are fixedly provided on the outer side of the threshing drum, and a plurality of main cleaning groups for cleaning the levers are provided at the lower end of the wheat feeding plate;

[0007] The main cleaning assembly includes two main cleaning rods, which are located on both sides of a corresponding lever. Two connecting plates are fixedly provided at the lower end of the wheat feeding plate, and a first extension plate is rotatably provided inside the two connecting plates. The end of the first extension plate is fixedly connected to the end of the main cleaning rod.

[0008] Preferably, the lower end of the wheat feeding plate is provided with multiple sets of auxiliary cleaning groups, each auxiliary cleaning group including two auxiliary cleaning rods, the auxiliary cleaning rods being located on the same side as the corresponding main cleaning rods;

[0009] A second extension plate is rotatably provided inside the two connecting plates, and the end of the second extension plate is fixedly connected to the end of the main cleaning rod.

[0010] Preferably, the first extension plate is inclined, and a first torsion spring is fixedly provided at the lower end of the wheat feeding plate, with the end of the first torsion spring fixedly connected to one side of the first extension plate.

[0011] Preferably, the auxiliary cleaning rod is inclined, and a second torsion spring is fixedly provided at the lower end of the wheat feeding plate, with the end of the second torsion spring fixedly connected to one end of the second extension plate.

[0012] Preferably, a plurality of transmission rods are fixedly provided at the lower end of the first extension plate, and the ends of the transmission rods abut against the corresponding auxiliary cleaning rods.

[0013] Preferably, the lever is arc-shaped, and multiple levers are arranged in a circular array. The inner wall of the drum shell is provided with a screen for separating wheat grains and wheat stalks.

[0014] Preferably, the lower end of the main cleaning rod has a rounded corner, and the rounded corner of the main cleaning rod abuts against the outside of the wheat threshing drum through a first torsion spring.

[0015] The technical effects and advantages of this invention are as follows:

[0016] 1. The main cleaning rod cleans the levers on the rotating threshing drum. When the threshing drum rotates to separate wheat and straw, it can simultaneously clean the straw wrapped around the levers. Furthermore, the main cleaning rod can remove the straw after it is removed and discharge it along with other normally discharged straw, which is practical for actual use.

[0017] 2. By setting up the auxiliary cleaning rod, when the main cleaning rod has been used for a long time and a lot of wheat straw has become entangled on the outside, affecting the use of the main cleaning rod, when the entangled wheat straw reaches a certain threshold, the distance between the wheat threshing roller and the main cleaning rod increases. At this time, the auxiliary cleaning rod will clean the wheat straw on the main cleaning rod, removing some of the wheat straw from the main cleaning rod, which facilitates the long-term use of the lever. The structure is simple. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the re-exfoliating roller cleaning brush device of the present invention.

[0019] Figure 2 This is a schematic diagram of the internal structure of the drum shell of the present invention.

[0020] Figure 3 This is a schematic diagram of the threshing drum structure of the present invention.

[0021] Figure 4 This is a schematic diagram of the main cleaning rod, auxiliary cleaning rod, and lever structure of the present invention.

[0022] In the diagram: 1. Drum shell; 2. Wheat feeding plate; 3. Wheat threshing drum; 4. Toggle lever; 5. Screen; 6. Connecting plate; 7. Main cleaning assembly; 701. First extension plate; 702. Main cleaning rod; 8. Secondary cleaning assembly; 801. Second extension plate; 802. Secondary cleaning rod; 9. First torsion spring; 10. Second torsion spring; 11. Transmission rod. Detailed Implementation

[0023] This invention provides, for example Figure 1 - Figure 4 The illustrated re-threshing drum cleaning brush device includes a drum shell 1 and a wheat feeding plate 2 for conveying wheat. Both the drum shell 1 and the wheat feeding plate 2 are installed inside the harvester. After the wheat feeding plate 2 feeds the wheat into the harvester, the wheat falls into the drum shell 1. One end of the drum shell 1 is higher than the other end, so the wheat enters from the higher end and the wheat stalks exit from the lower end. The drum shell 1 and the wheat feeding plate 2 are existing technologies and will not be described in detail here. The inner wall of the drum shell 1 is provided with a screen 5 for separating wheat grains and wheat stalks. A threshing drum 3 is rotatably mounted on the inner side of the drum shell 1 via a rotating shaft. Multiple levers 4 are fixed on the outer side of the threshing drum 3. The levers 4 are arc-shaped and arranged in a circular array to separate wheat and wheat stalks. The lower end of the wheat feeding plate 2 is provided with multiple sets of main cleaning groups 7 for cleaning the levers 4. The main cleaning groups 7 are used to clean the levers 4.

[0024] The main cleaning assembly 7 includes two main cleaning rods 702. The first extension plate 701 is inclined to facilitate the rotation of the main cleaning rods 702 when the threshing drum 3 rotates. The lower end of the feeding plate 2 is fixedly provided with a first torsion spring 9. Through the setting of the first torsion spring 9, the end of the main cleaning rod 702 is attached to the threshing drum 3. The end of the first torsion spring 9 is fixedly connected to one side of the first extension plate 701. The two main cleaning rods 702 are located on both sides of the corresponding lever 4. The lower end of the feeding plate 2 is fixedly provided with two connecting plates 6. The first extension plate 701 is rotatably provided inside the two connecting plates 6. The end of the first extension plate 701 is fixedly connected to the end of the main cleaning rod 702.

[0025] The main cleaning rod 702 cleans the lever 4 on the rotating threshing drum 3. When the threshing drum 3 rotates to separate wheat and wheat straw, the wheat straw wrapped around the lever 4 can be cleaned at the same time. Furthermore, with the main cleaning rod 702, after the wheat straw is cleaned off, it can be discharged along with other normally discharged wheat straw, which is in line with actual use.

[0026] The lower end of the wheat feeding plate 2 is provided with multiple sets of auxiliary cleaning groups 8. The auxiliary cleaning group 8 includes two auxiliary cleaning rods 802. The auxiliary cleaning rods 802 are located on one side of the corresponding main cleaning rods 702. The lower end of the main cleaning rods 702 is provided with rounded corners. The rounded corners of the main cleaning rods 702 abut against the outside of the wheat threshing roller 3 through the first torsion spring 9. The two connecting plates 6 are rotatably provided with second extension plates 801. The end of the second extension plate 801 is fixedly connected to the end of the main cleaning rod 702. The auxiliary cleaning rods 802 are set at an inclination. The lower end of the wheat feeding plate 2 is fixedly provided with a second torsion spring 10. The end of the second torsion spring 10 is fixedly connected to one end of the second extension plate 801.

[0027] With prolonged use, the main cleaning rod 702 will inevitably become entangled with straw as it comes into direct contact with it. When a large amount of straw is entangled on the main cleaning rod 702, it will affect its use. At this time, because the outer side of the main cleaning rod 702 is covered with straw, the distance between the threshing roller 3 and the main cleaning rod 702 will increase, causing the main cleaning rod 702 to be squeezed and rotate toward the second extension plate 801.

[0028] Multiple transmission rods 11 are fixedly provided at the lower end of the first extension plate 701. The ends of the transmission rods 11 abut against the corresponding auxiliary cleaning rods 802. When the main cleaning rod 702 rotates, it will drive the transmission rods 11 to rotate. The rotating rods will squeeze the auxiliary cleaning rods 802. At this time, the auxiliary cleaning rods 802 will clean the straw on the main cleaning rod 702 and remove some of the straw from the main cleaning rod 702. At this time, due to the removal of the straw, the first torsion spring 9 and the second torsion spring 10 work, so that the first extension plate 701 drives the main cleaning rod 702 to reset, and the second extension plate 801 drives the auxiliary cleaning rod 802 to reset, and continue to clean the lever 4. When the auxiliary cleaning rod 802 is in its original position, it will not directly contact the straw, so the use of the auxiliary cleaning rod 802 can be guaranteed.

Claims

1. A re-threshing drum cleaning brush device, comprising a drum shell (1) and a wheat conveying plate (2) for conveying wheat, characterized in that: The inner side of the drum shell (1) is provided with a threshing drum (3) that rotates through a rotating shaft. Multiple levers (4) are fixed on the outer side of the threshing drum (3). Multiple main cleaning groups (7) for cleaning the levers (4) are provided at the lower end of the wheat feeding plate (2). The main cleaning assembly (7) includes two main cleaning rods (702), which are located on both sides of the corresponding lever (4). The lower end of the wheat feeding plate (2) is fixedly provided with two connecting plates (6), and a first extension plate (701) is rotatably provided inside the two connecting plates (6). The end of the first extension plate (701) is fixedly connected to the end of the main cleaning rod (702).

2. The re-extraction drum cleaning brush device according to claim 1, characterized in that: The lower end of the wheat feeding plate (2) is provided with multiple sets of auxiliary cleaning groups (8), each set of auxiliary cleaning groups (8) including two auxiliary cleaning rods (802), each auxiliary cleaning rod (802) being located on one side of the corresponding main cleaning rod (702); A second extension plate (801) is rotatably provided inside the two connecting plates (6), and the end of the second extension plate (801) is fixedly connected to the end of the main cleaning rod (702).

3. The re-extraction drum cleaning brush device according to claim 1, characterized in that: The first extension plate (701) is inclined, and the lower end of the wheat feeding plate (2) is fixedly provided with a first torsion spring (9), and the end of the first torsion spring (9) is fixedly connected to one side of the first extension plate (701).

4. The re-extraction drum cleaning brush device according to claim 2, characterized in that: The auxiliary cleaning rod (802) is inclined, and a second torsion spring (10) is fixedly provided at the lower end of the wheat feeding plate (2). The end of the second torsion spring (10) is fixedly connected to one end of the second extension plate (801).

5. The re-extraction drum cleaning brush device according to claim 2, characterized in that: The lower end of the first extension plate (701) is fixedly provided with a plurality of transmission rods (11), and the ends of the transmission rods (11) abut against the corresponding auxiliary cleaning rods (802).

6. The re-extraction drum cleaning brush device according to claim 1, characterized in that: The lever (4) is arc-shaped, and multiple levers (4) are arranged in a ring array. The inner wall of the drum shell (1) is provided with a screen (5) for separating wheat grains and wheat straw.

7. The re-extraction drum cleaning brush device according to claim 3, characterized in that: The lower end of the main cleaning rod (702) is provided with a rounded corner, and the rounded corner of the main cleaning rod (702) abuts against the outside of the wheat threshing drum (3) through the first torsion spring (9).

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